ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,897, issued on March 24, was assigned to DRAGER SAFETY AG & Co. KGAA (Lubeck, Germany).

"Gas detection device and gas detection process, which generate a warning and an alarm" was invented by Rudiger Weich (Lubeck, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas detection device and a gas detection process are capable of detecting a target gas. The sensor unit measures the target gas concentration and generates a target gas signal (con), which includes a temporal sequence of target gas signal values. If a target gas signal value is between a lower target gas threshold (conlow) and a higher target gas threshold, a target gas warning is ...